Article
Acoustics
Danielle S. Gontijo, Jose M. Araujo, Tito L. M. Santos, Fernando O. Souza
Summary: This paper presents a design framework for obtaining a robust multivariable PID controller for second-order linear vibrating systems. It also proposes a PIDA controller to address the regularization problem. Control challenges such as modeling error, regulatory performance optimization, regional pole placement, saturation avoidance, and constant reference tracking are handled using a Linear Matrix Inequality design approach. The design strategy involves a linear transformation for achieving constant reference tracking in an actuated subspace. The integral action has additional objectives of improving regulatory performance in the presence of constant disturbance and increasing design degree of freedom.
JOURNAL OF VIBRATION AND CONTROL
(2023)
Article
Automation & Control Systems
Michel Fliess, Cedric Join
Summary: This paper suggests replacing traditional Proportional-Integral and Proportional-Integral-Derivative regulators with intelligent Proportional-Derivative feedback loops, derived from model-free control, and provides experimental evidence to support this suggestion.
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
(2022)
Article
Automation & Control Systems
Samer S. Saab, Rayana H. Jaafar
Summary: This paper proposes a stochastic discrete-time multivariable proportional-derivative-double derivative (PDD) controller to improve system robustness and relative stability. The study shows that the mean-square velocity error is inversely proportional to the square of the sample rate. Experimental results demonstrate the tracking superiority of the proposed control.
INTERNATIONAL JOURNAL OF CONTROL
(2021)
Article
Automation & Control Systems
Oded Yaniv, Stanimir Mollov
Summary: This article presents a method for calculating all proportional-integral/proportional-derivative controllers with a given order low-pass filter that meet the requirements of gain-phase margins and sensitivity. The method is explicit and involves solving a set of polynomial and linear equations. The article also discusses extending the method to design proportional-integral-derivative or cascaded controllers with a low-pass filter when a minimum value of one of the controller components is given.
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Minoru Sasaki, Joseph Muguro, Fumiya Kitano, Waweru Njeri, Daiki Maeno, Kojiro Matsushita
Summary: In response to the increasing demand for high-speed, energy-efficient, and cost-effective solutions in industries, there is a growing interest in developing flexible link manipulator robots. This research paper presents a novel approach that uses reinforcement learning to control the vibration and motion of a two-link flexible manipulator. By utilizing trust region policy optimization, the proposed system successfully trains the manipulator's end effector to reach the desired target position while minimizing vibration and strain. The results demonstrate the effectiveness of this approach, but challenges in transitioning from simulation to real-world control verification need to be addressed for improved applicability.
Article
Acoustics
Florian Lacaze, Ahmad Paknejad, Didier Remond, Simon Chesne
Summary: This study examines the effectiveness of an integral force feedback controller in improving the damping of lightweight flexible structures. The control system parameters are tuned using both maximum damping and H-infinity optimization approaches. Two modifications to the integral force feedback are proposed to compensate for the soft stiffness and enhance the actuator's authority. By incorporating feedback terms, higher damping values can be achieved. The study also discusses optimal tuning, required actuator force, and stability based on an academic model of a single-degree-of-freedom cable structure.
JOURNAL OF VIBRATION AND CONTROL
(2022)
Article
Mechanics
Rajesh Ranjan, S. K. Dwivedy
Summary: This paper presents an innovative method for controlling the endpoint precision of a single-link flexible manipulator. By stiffening the flexible link with a pair of strings, the tip deflection of the link is significantly reduced, and residual vibrations are controlled using robust PID control.
MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES
(2023)
Article
Computer Science, Information Systems
Zhiguang Feng, Huayang Zhang, Rui-Bing Li
Summary: This paper investigates the problems of state and static output feedback control for a class of singular Takagi-Sugeno fuzzy systems with time-varying delay. The sufficient conditions for system stabilization are proposed based on the Lyapunov stability theory, and two iterative algorithms are built to solve the controller gains. Two persuasive examples are given to demonstrate the effectiveness of the proposed methods.
INFORMATION SCIENCES
(2022)
Article
Automation & Control Systems
Masami Saeki
Summary: A new data-driven tuning method for stable multi-input multi-output plants with a linearly parametrized controller is proposed, using the second order Taylor expansion for parameter tuning. The parameter value that minimizes the approximated data-based criterion is obtained adopting the linear least-squares method. This tuning method is compared with virtual reference feedback tuning and its extended methods for multi-input multi-output plants.
Article
Engineering, Mechanical
Thanglong Mai
Summary: An adaptive tracking control method based on hybrid PID technique is proposed in this research to improve tracking performance and stability of the nonholonomic robot system. The method utilizes online learning of PID gains and adaptive controllers to address uncertainties and maintain stability, as demonstrated by numerical simulations.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2021)
Article
Engineering, Mechanical
Lei Chen, Bo Jin, Ce Zhang, Qiang Guo
Summary: This paper proposes a state feedback control with integral compensation for the spool displacement control of the servo proportional valve. The control method addresses the problem of system nonlinearity and parameter uncertainty by adding an outer loop negative feedback and integral element. Experimental and simulation results show that the integral element can compensate for nonlinearities and uncertain parameters, improving the frequency response of the servo proportional valve compared to traditional PID control.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
(2023)
Article
Engineering, Multidisciplinary
Mingming Shi, Yong Cheng, Bao Rong, Wenlong Zhao, Zhixin Yao, Chao Yu
Summary: A control strategy based on dynamics-based trajectory planning and fuzzy self-tuning PD controller is proposed for residual vibration suppression and trajectory tracking of a flexible link manipulator. By combining with a linear extended state observer, the trajectory tracking performance under external disturbances is improved. The effectiveness and feasibility of the composite control strategy are verified through multiple simulations.
APPLIED MATHEMATICAL MODELLING
(2022)
Article
Automation & Control Systems
Subhashis Nandy
Summary: This research focuses on the design and stability analysis of nonlinear controllers for an electrically driven marine cycloidal propeller, along with estimating various parameters using the Extended Kalman Filter. The controller is defined using an efficient physics-based model and is able to accurately process multiple control signals. The robustness of the controller is assessed using Monte Carlo simulation, and its performance is evaluated through validation investigations.
CONTROL ENGINEERING PRACTICE
(2024)
Article
Automation & Control Systems
Qingxin Meng, Xuzhi Lai, Ze Yan, Min Wu
Summary: This article presents a tip position control and vibration suppression approach for a planar two-link rigid-flexible underactuated manipulator. By controlling the active flexible link, the passive rigid link can be indirectly controlled. The target angles are calculated using the inverse kinematic method and the controller parameters are optimized using genetic algorithm. Simulation results demonstrate the effectiveness of the proposed approach.
IEEE TRANSACTIONS ON CYBERNETICS
(2022)
Article
Acoustics
Gang Liu, Wei Jiang, Qi Wang, Tao Wang
Summary: An improved variable universe fuzzy proportional-integral-derivative control algorithm is developed in this study, where control parameters are automatically determined in real-time based on fuzzy logic control. The proposed method is applied to a three-story frame structure with a magnetorheological damper, showing better performance than traditional methods.
JOURNAL OF VIBRATION AND CONTROL
(2022)
Article
Mechanics
L. Malgaca, H. Dogan, M. Akdag, S. Yavuz, M. Uyar, B. Bidikli
COMPOSITE STRUCTURES
(2018)
Article
Engineering, Mechanical
M. Uyar
Summary: This study investigates the effect of two different motion profiles on the vibration of a flexible composite manipulator. The dynamic performance is explored using theoretical and experimental approaches. The study presents a SimMechanics-based flexible dynamic model and a finite element model, and evaluates the effectiveness of the motion profiles in reducing vibration amplitudes. The results are verified through simulations and experiments, increasing the reliability of the proposed method.
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2022)
Article
Engineering, Mechanical
M. Uyar
Summary: In this study, a motion-based control (MBC) method with designed motion profiles is introduced to reduce the endpoint vibrations of epoxy-glass-reinforced composite manipulators. The effectiveness of MBC is evaluated by comparing the change in RMS values of endpoint vibration responses and the reduction rates for all motion profiles. The results show significant advantages for the MBC method, reducing vibrations by approximately 99% and eliminating positioning errors caused by vibrations.
IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF MECHANICAL ENGINEERING
(2023)
Article
Engineering, Civil
Mehmet Uyar, Mustafa Ergun
Summary: This paper presents the pure active control performance of a tall building under the influence of earthquake records. The effects of single and multi-feedback controllers on vibration elimination at the top and all floors are studied. The results show that multi-feedback control is more effective than single-feedback control in reducing vibration amplitudes at all floors in the pure active control system.
Article
Multidisciplinary Sciences
M. Uyar
Summary: The piezoelectric energy harvesting performances of smart wind blades and smart drone propellers using lead zirconate titanate (PZT) material were evaluated. The energy harvesting performance of the smart wind blades was influenced by the blade angles, while the performance of the smart drone propellers depended on the sensor responses and polarization directions. The maximum and minimum power outputs obtained were approximately 0.086 W and 0.008 W, respectively. The results indicated that the z-polarized smart propeller had better energy harvesting performance than the y polarization, and the amount of energy obtained increased with the rotation speed and endpoint vibration amplitudes.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Multidisciplinary Sciences
M. Uyar, L. Malgaca
Summary: This study proposes a model extraction approach for vibration suppression of single-link flexible smart and composite manipulators and investigates active and passive control of residual vibrations. The optimization of control gains successfully reduces residual vibrations of smart manipulators.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Engineering, Multidisciplinary
L. Malgaca, M. Uyar
COMPOSITES PART B-ENGINEERING
(2019)
